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本文描述一种其蝶式运算器是按位划分、每片4位的FFT计算机。蝶式运算器的结构是按时间抽取算法DIT设计的。这种计算机适合速度较低的实时系统或非实时信号处理应用。
This article describes a butterfly calculator that is a bit-wise, four-bit FFT computer. The structure of the butterfly is based on the time-decimation algorithm DIT. This type of computer is suitable for low-speed real-time systems or non-real-time signal processing applications.